JP2008229509A - Coating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating apparatus which receives and recovers coating material scattered or dropped in coating work thereby preventing the soiling of the surroundings due to the coating material. <P>SOLUTION: The coating apparatus 1 is provided with: an apparatus body 3 fitted on the outer circumferential surface of a tubular or cylindrical structural member 2 and linearly movable on the circumferential surface of the structural member 2 in the axial line direction; and a coating part 17 provided in the apparatus body 3, linearly moving together with the apparatus body 3 and rotatably moved in the circumferential direction of the structural member 2 to apply the coating material onto the circumferential surface of the structural member 2, wherein a coating material recovery part 29 for receiving and recovering the coating material scattered from the coating part 17 is attached to the apparatus body 3 detachably, the coating material recovery part 29 is provided with a support shaft 30 attached to the apparatus body 3 detachably, a support frame 31 attached to the support shaft 30 to be freely foldable and a coating material receiving part 36 attached to the support frame 31 and for receiving and recovering the coating material scattered or dropped in the coating work. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a coating apparatus, and more particularly, to a coating apparatus suitable for coating the surface of a structural member such as a steel tower formed by assembling a plurality of columnar or cylindrical structural members.

  Structures such as steel towers (conductive towers, etc.) constructed by assembling a plurality of cylindrical or cylindrical steel pipes and other structural members are installed in a state exposed to the natural environment. Applied to increase corrosion resistance and prevent rusting. Moreover, the maintenance which repaints every fixed period is performed, and constant corrosion resistance is maintained over a long term.

  Structures such as steel towers having such a structure are several tens of meters above the ground. Therefore, when coating the surface of the structural member, it is necessary to ensure the safety of the operator. For this reason, the coating apparatus which can be controlled by remote operation is used, and the surface of the structural member is coated while moving the coating apparatus along the structural member.

  As an example of a coating device that paints the surface of a structural member by remote control, a device main body that can move straight on the peripheral surface of the structural member, and a coating that can be attached to the device main body and that can rotate in the circumferential direction of the structural member The coating apparatus provided with the part is proposed (for example, refer patent document 1).

In the coating apparatus having such a configuration, it is attached to the peripheral surface of the structural member, and while rotating on the peripheral surface of the structural member in the axial direction, the coating portion is rotated and moved in the circumferential direction of the structural member, The coating part can form a coating film having a predetermined thickness on the surface of the structural member.
JP 2005-58953 A

  By the way, in the coating apparatus having the above-described configuration, when coating is performed on the peripheral surface of the structural member by the coating unit, the paint supplied to the peripheral surface of the structural member is scattered around by the rotation of the coating unit. Or the coating material supplied more than necessary on the peripheral surface of the structural member may drop downward, and the surroundings may be soiled with the coating material.

  In order to prevent such scattering and dripping of the paint, a method of providing a cover on the brush of the painted part is employed. However, in such a method, the paint that is scattered or dripped cannot be completely recovered, and some of the paint is scattered around or dripped, and the surroundings are soiled. There is. In addition, due to the structural problem of the cover, the paint accumulated inside the cover during the movement of the coating apparatus may spill outside the cover and stain the surroundings.

  The present invention has been made in view of the above-described conventional problems. When coating is applied to the surface of a columnar or cylindrical structural member of a structure such as a steel tower, the paint is scattered around. It is an object of the present invention to provide a coating apparatus that does not stain the surroundings by dripping downward, and that does not cause the collected paint to spill and stain the surroundings.

The present invention employs the following means in order to solve the above problems.
That is, the invention according to claim 1 is provided on the peripheral surface of the columnar or cylindrical structural member, and is provided on the peripheral surface of the structural member that can move linearly in the axial direction on the peripheral surface of the structural member. And a coating unit that linearly moves integrally with the apparatus main body and rotates in the circumferential direction of the structure to apply paint to the peripheral surface of the structural member, the apparatus main body In addition, a paint recovery part for receiving and recovering paint scattered from the paint part is detachably attached.

  According to the coating apparatus of the present invention, when the paint is applied to the peripheral surface of the structural member by the coating unit, the scattered paint or the dropped paint is recovered by the paint recovery unit that moves linearly integrally with the apparatus main body. Therefore, it is possible to prevent the surroundings from being contaminated by being scattered or dripped around.

  A second aspect of the present invention is the coating apparatus according to the first aspect, wherein the paint recovery unit is detachably attached to the apparatus main body, and a telescopic support frame attached to the support shaft. And a paint receiving part that receives and collects paint that is scattered or dripped at the time of a painting operation by the paint part.

  According to the coating apparatus of the present invention, the paint recovery part is attached to the apparatus main body by attaching the support shaft to the apparatus main body, and in this state, the paint receiving part is spread or dropped in the paint direction by spreading the support frame. The paint that is scattered or dripped at the time of painting by the painting part is received and collected by this paint receiving part.

  A third aspect of the present invention is the coating apparatus according to the second aspect, wherein the paint recovery part is attached to the apparatus main body so that the paint receiving part is positioned vertically below the paint part. It is characterized by.

  According to the coating apparatus of the present invention, since the paint receiving part of the paint collecting part is arranged vertically below the painting part, the paint dripping during the painting work by the paint part can be reliably received and collected. Will be able to.

  The invention according to claim 4 is the coating apparatus according to claim 2 or 3, wherein the support frame is relatively disposed between the middle portions of the two long plate-like frame members via a connecting pin. A set of frame members that are configured to be pivotably connected are arranged in predetermined pairs along the long and short sides of the rectangle, and a connecting member between a set of adjacent frame members at each corner of the rectangle. Are connected so as to be relatively rotatable, and each pair of frame material of each long side and each short side is rotated relative to each other around the connecting pin, whereby the long side of the rectangle It is comprised so that it can expand-contract in a direction and a short side direction.

  According to the coating apparatus according to the present invention, the entire frame material is disposed around the long side and the short side of the rectangle, and the entire frame material is rotated about the connecting pin as a center. And it can be expanded and contracted in the short side direction.

  The invention according to claim 5 is the coating apparatus according to claim 4, wherein the support shaft is constructed between the long sides facing each other or the short sides facing each other, and the tip of the support shaft is A slide member is connected to a part of the frame material of one long side or a part of the frame material of one short side, and a part of the frame material of the other long side or a part of the frame material of the other short side. The slide member is connected to the support shaft so as to be slidable, and the short side and the long side are expanded and contracted by sliding along the support shaft of the slide member.

  According to the coating apparatus of the present invention, since the short side and the long side of the support frame are expanded and contracted by sliding the slide member along the support shaft, the expansion and contraction of the support frame can be facilitated. .

  As described above, according to the coating apparatus of the present invention, when coating is applied to the peripheral surface of the structural member by the coating unit, the paint that is scattered or dropped by the coating material recovery unit that moves linearly integrally with the apparatus main body. It can be received and collected. Accordingly, since the paint does not scatter around the surroundings, the cleaning work after the painting can be facilitated, and the painting work can be performed efficiently. In addition, since the paint recovery unit is attached to the device main body and is configured to move linearly integrally with the device main body, the paint recovery unit performs the painting work when painting the peripheral surface of the structural member by the coating unit. The paint can be efficiently performed.

  Furthermore, since the paint collecting part is constructed by attaching the paint receiving part to an extendable support frame, the paint receiving part can be greatly expanded by extending the support frame during use, and the paint can be collected efficiently. The whole can be made compact by shrinking the support frame and shrinking the paint receiving part at the time of removal. Therefore, the paint recovery unit can be easily attached to and detached from the apparatus main body, and the paint recovery unit can be easily carried.

  Furthermore, since the paint collecting part is attached to the main body of the apparatus so that the paint receiving part is positioned vertically below the painting part, it is possible to reliably receive and collect paint dripping from the peripheral surface of the structural member. Therefore, it is possible to completely prevent the surroundings from being soiled by the paint.

  Further, the support frame is a simple arrangement in which a set of frame materials in which two frame materials are relatively rotatably connected via a connecting pin are arranged in predetermined pairs along the long and short sides of a rectangle. Since it is a thing of a structure, while being able to manufacture, a maintenance can also be made easy.

  Furthermore, since the long side and the short side of the support frame can be expanded and contracted by sliding the slide member with the support shaft, the support frame can be easily expanded and contracted, and the support frame can be easily attached to and detached from the apparatus body. Can be.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of a coating apparatus according to the present invention. FIG. 1 is a perspective view showing the whole of the coating apparatus, and FIG. 2 is an explanation showing a state in which a frame of the coating apparatus is opened. FIG. 3, FIG. 3 is an enlarged view of a paint recovery unit of the coating apparatus of FIG. 1, FIG. 4 is a perspective view showing a folded state of the paint recovery unit of FIG. 3, and FIG. 5 is a state before installation of the paint recovery unit of FIG. It is explanatory drawing which shows.

  That is, this coating apparatus 1 is applied when coating is applied to the surface of a structural member 2 (for example, a steel pipe of a steel tower formed by assembling a plurality of steel pipes) having a cylindrical shape or a columnar shape. The apparatus main body 3 is detachably attached to the member 2, and the paint recovery unit 29 is detachably attached to the apparatus main body 3.

  The apparatus body 3 is mounted on the frame 4, which is provided on the frame 4 having an annular shape, and a plurality of support rollers 11 that support the frame 4 on the peripheral surface of the structural member 2 so as to be linearly movable. In addition, a drive source 14 that rotationally drives a specific support roller 11 among the plurality of support rollers 11 and a control unit 16 that controls driving of the drive source 14 are provided.

  The frame 4 is formed by combining two C-shaped frame halves 5 and 8 into an annular shape, and one end of both frame halves 5 and 8 are connected to each other via a hinge 9. The other end portions of both frame halves 5, 8 are configured to be openable and closable via a hinge 9, and are configured to be detachable on the peripheral surface of the structural member 2. The other half of the frame halves 5 and 8 are configured to be fastened by fastening means 10 such as a belt or a bolt.

  The frame 4 is formed in such a size (inner diameter) that a predetermined gap is formed between the frame 4 and the circumferential surface of the structural member 2 when attached to the circumferential surface of the structural member 2. The support roller 11 is rotatably arranged.

  On the inner periphery of the frame 4, a pair of support rollers 11 is formed as a set, and a set of the support rollers 11 is provided at a plurality of positions in the circumferential direction of the frame 4 at predetermined intervals. The frame 4 is supported on the peripheral surface of the structural member 2 so as to be linearly movable.

  Each pair of support rollers 11 is arranged at a predetermined interval in the axial direction of the frame 4. Each support roller 11 includes a disk-shaped roller body 12, a rotation shaft (not shown) that is rotatably attached to a central portion of the roller body 12 via a bearing (not shown), and a rotation shaft that is rotatable. The guide member 13 is supported by the guide member 13 so that the rotation axis faces a direction orthogonal to the axis of the frame 4 (the axis of the structural member 2), and the roller body 12 protrudes in the center direction of the frame 3. It is attached to the inner periphery of the frame 4 via the guide member 13.

  Each support roller 11 is adjusted in the position in the center direction of the frame 4 by adjusting the mounting position of the guide member 13 with respect to the frame 4, and by adjusting the position in the center direction for each support roller 11, Each support roller 11 can be brought into contact with the peripheral surface of the structural member 2 with substantially the same surface pressure.

  The support roller 11 disposed below one frame half 5 of the plurality of support rollers 11 has an output shaft of a motor 14 whose rotation shaft is a drive source via a transmission member 15 such as a gear or a chain. And is configured to be rotationally driven via the transmission member 15 by driving the motor 14.

  The motor 14 for driving the support roller 11 is configured so that the rotation direction and the rotation speed can be controlled by the control unit 16 mounted on the frame 4, whereby the coating apparatus 1 is moved in a predetermined direction in the axial direction of the structural member 2. Can move forward or backward at speed.

  The coating unit 17 is a rotating unit 18 that is rotatably provided at one end of the frame 4 of the apparatus body 3, a driving roller 19 that rotationally drives the rotating unit 18, and a driving source that rotationally drives the driving roller 19. A motor (not shown), a brush support 20 that is attached to the rotary unit 18 and can be rotated together with the rotary unit 18, a brush 25 that is detachably attached to the brush support 20, and the apparatus main body 3 A paint tank (not shown) that is mounted and filled with a predetermined amount of paint inside, a paint supply pipe 23 that guides the paint in the paint tank onto the peripheral surface of the structural member 2, and a paint supply pipe from the paint tank 23 is provided with a supply pump (not shown) for pumping the paint.

  A plurality of guide rollers 24 are provided at predetermined intervals in the circumferential direction on the end surface in the axial direction of the frame 4 of the apparatus body 3, and the rotating portion 18 of the coating unit 17 is rotated by the plurality of guide rollers 24. It is supported freely.

  One guide roller 24 arranged below one frame half 5 of the plurality of guide rollers 24 is configured as a drive roller 19, and the peripheral surface of the drive roller 19 is used as the peripheral surface of the rotating unit 18. By the press contact, the rotating portion 18 is driven to rotate following the rotation of the driving roller 19. The drive roller 19 is connected to a motor (not shown) as a drive source via a transmission member (not shown) such as a gear, and the drive roller 19 is rotationally driven via the transmission member by driving the motor. Following the rotation of the roller 19, the rotating part 18 of the coating part 17 is driven to rotate. The motor is configured such that the rotation direction and the rotation speed can be controlled by the control unit 16 mounted on the frame 4 of the apparatus body 3, thereby controlling the rotation direction and the rotation speed of the rotation unit 18 of the coating unit 17. Can do.

  The brush support portion 20 is attached to the side surface of the rotating portion 18, and includes a leg portion 21 whose tip portion protrudes outward from the outer peripheral surface of the frame 4, and an attachment portion 22 attached to the tip portion of the leg portion 21. The leg portion 21 and the attachment portion 22 are configured to rotate integrally with the rotating portion 18.

  The brush 25 includes a handle portion 26 made of wood, metal, or plastic, and a brush portion 27 formed by bundling a plurality of hairs attached to the distal end portion of the handle portion 26. The brush tip 28 of the brush portion 27 has a structure. The handle portion 26 is attached to the attachment portion 22 of the brush support portion 20 so as to contact the peripheral surface of the member 2 with a predetermined surface pressure.

  The rotary unit 18 is driven to rotate by the operation of the drive source, the brush 25 is rotated integrally with the rotary unit 18, and the pump is driven in this state, so that the periphery of the structural member 2 is passed from the paint tank through the paint supply pipe 23. The paint is supplied onto the surface, and the paint is applied to the peripheral surface of the structural member 2 with a predetermined thickness.

  As shown in FIG. 3, the paint recovery unit 29 includes a support shaft 30 that is detachably attached to a mounting portion 6 provided at a lower portion of one frame half 5 of the frame 4 of the apparatus body 3, and a support shaft 30. A support frame 31 that is detachably attached to the support frame 31 and a paint receiving portion 36 that is detachably attached to the support frame 31 are provided.

  The support shaft 30 has a rod shape, and is attached to the frame 4 of the apparatus main body 3 by inserting approximately half of the rear end side into the attachment hole 7 of the attachment portion 6 of the apparatus main body 3. In this case, it is configured such that a substantially half of the rear end side of the support shaft 30 is inserted into the mounting hole 7 and fixed to a part of the mounting portion 7 by a fixing means (not shown) such as a screw. Also good.

  As shown in FIG. 5, the support frame 31 is composed of two long plate-like frame members 33 and 33 that are overlapped with each other and connected between intermediate portions in the longitudinal direction of both frame members 33 and 33 by connecting pins 34. The frame members 33 and 33 are rotatable relative to each other about the connecting pin 34, and the pair of frame members 32 configured in this way are respectively set along a rectangular short side a and a long side b. Each pair (in this embodiment, one set on the short side a side and two sets on the long side b side) is arranged, and the connecting pins are connected between the ends of the two adjacent frame members 32 and 32 on the long side b side. 34, and a pair of frame members 32 on the short side a side and a pair of frame members 32 on the long side b side adjacent thereto are connected by rubber or the like. It is configured to be connected via a member 35.

  In the support frame 31, a substantially half of the front end side of the support shaft 30 is installed between intermediate portions of the opposing long sides b and b, and in this state, the front end portion of the support shaft 30 is connected to one long side b of the support frame 31. A part of the frame material 33 located in the center part (a connection part between the adjacent frame materials 33) is connected via a connection fitting 38, and a part of the frame material 33 located in the center part of the other long side b ( The support shaft 30 is attached to the support shaft 30 by inserting the support shaft 30 through a slide member 37 attached to a connecting portion between adjacent frame members 33.

  The slide member 37 has a plate-like shape provided with a slide hole 37a penetrating through the center portion. The lower end portion of the slide member 37 is connected to the center portion of the other long side b of the support frame 31, and the slide of the center portion is formed. The support shaft 30 is slidably inserted through the hole 37a.

  In the support frame 31 having the above-described configuration, by sliding the slide member 38 along the support shaft 30, each pair of the frame material 32 of both the short sides a and a and each of the long sides b and b thereof. Each pair of frame members 32 rotates about the connecting pin 34, and each short side a and each long side b extend to the maximum as shown in FIG. 3, or each short side as shown in FIG. The side a and each long side b can be set to be contracted to a minimum.

  In this case, as shown in FIG. 3, the support frame 31 is configured so that each short a side and each long side b are extended to the maximum, so that each support frame 31 is larger than the outer dimensions of the frame 4 of the apparatus body 3. The length of the frame material 33 that constitutes the side a and each long side b is set.

  The paint receiving portion 36 is formed in a sheet shape formed of a synthetic resin or the like, and has a predetermined position and a long side b of each set of frame members 32 whose peripheral portions are located on the short side a side of the support frame 31. Each set of frame members 32 located on the side is fixed to a predetermined position. In this case, the coating material receiving portion 36 is large so that the frame material 32 of each set of the support frame 31 is extended to the maximum, and a slack is generated downward from the support frame 31 to form a bag shape with a predetermined depth. Is set.

  Then, the coating apparatus 1 according to the present embodiment configured as described above is mounted on the peripheral surface of the structural member 2, and the pump of the coating unit 17 is operated to construct the structure from the paint tank through the paint supply pipe 23. The paint is supplied to the peripheral surface of the structural member 2 by supplying the paint onto the peripheral surface of the member 2 and operating the driving source of the coating portion 17 to rotate the brush 25 integrally with the rotating portion 18. I will do it. Then, in such a painting operation by the coating unit 17, the driving source 14 of the apparatus main body 3 is operated to rotate the support roller 11, and the apparatus main body 3 is moved linearly on the peripheral surface of the structural member 2 in the axial direction. By doing so, a coating film having a predetermined thickness can be formed over the entire circumference of the structural member 2.

  During the painting operation by the coating unit 17 as described above, the paint scattered by the rotation of the brush 25 of the coating unit 17 and the coating dropped from the peripheral surface of the structural member 2 are arranged below the coating unit 17. Since it is received and collected in the paint receiving part 36 of the paint collecting part 29, it is not scattered or dripped around.

  Further, the paint accumulated in the paint receiving part 36 of the paint collecting part 29 after the coating is finished is folded from the inside of the paint receiving part 36 by folding the support frame 31 and deepening the bag-like part of the paint receiving part 36. The paint can be prevented from leaking outside.

  In the coating apparatus 1 according to the present embodiment configured as described above, when coating is performed on the peripheral surface of the structural member 2 by the coating unit 17, the paint is scattered around by the rotation of the brush 25 of the coating unit 17. Further, the paint to be dripped can be reliably received and collected by the paint receiving part 36 of the paint collecting part 29 arranged below the painting part 17, so that the surroundings are not contaminated with the paint and the painting work The operation | work which cleans the coating material which splashed around after completion | finish of this becomes unnecessary, and can improve the efficiency of a painting operation significantly.

  In addition, since the paint recovery unit 29 has a simple structure in which the support frame 31 is attached to the support shaft 30 and the paint receiving part 36 is attached to the support frame 31, it can be easily manufactured and can be easily maintained. You can also. Further, since the support frame 31 can be expanded and contracted, it can be easily attached to and detached from the apparatus main body 3 and can be easily carried.

  In the above description, the support shaft 30 is disposed between the opposed long sides b and b of the support frame 31, but the support shaft 30 may be disposed between the opposed short sides a and a of the support frame 31. Good. In short, the shape and size of the support frame 31 may be set according to the shape and size of the coating portion 17.

  In the above description, the present invention is applied to a so-called self-propelled coating apparatus. However, a coating apparatus configured to be linearly movable on the peripheral surface of a structural member by driving a winch or the like, and other known coating apparatuses. The present invention may be applied to an apparatus, and in that case, the same function and effect are achieved.

It is explanatory drawing which showed the whole coating apparatus by this invention, Comprising: It is explanatory drawing which showed the state with which it mounted | wore on the surrounding surface of a structural member. It is explanatory drawing which showed the state with the open frame of the coating device of FIG. It is an enlarged view of the coating material collection | recovery part of the coating device of FIG. It is explanatory drawing which showed the state by which the coating material collection | recovery part of FIG. 3 was folded. It is explanatory drawing which showed the state before attachment of the coating material collection | recovery part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coating apparatus 2 Structural member 3 Apparatus main body 4 Frame 5 One frame half part 6 Attachment part 7 Attachment hole 8 The other frame half part 9 Hinge 10 Fastening means 11 Support roller 12 Roller main body 13 Guide member 14 Drive source (motor)
DESCRIPTION OF SYMBOLS 15 Transmission member 16 Control part 17 Coating part 18 Rotation part 19 Drive roller 20 Brush support part 21 Leg part 22 Attachment part 23 Paint supply pipe 24 Guide roller 25 Brush 26 Handle part 27 Brush part 28 Brush tip 29 Paint collection part 30 Support shaft Reference Signs List 31 Support Frame 32 Set of Frame Material 33 Frame Material 34 Connection Pin 35 Elastic Member 36 Paint Receiving Portion 37 Slide Member 37a Slide Hole 38 Connection Hardware a Short Side b Long Side

Claims (5)

A device main body mounted on the circumferential surface of a columnar or cylindrical structural member and capable of linearly moving in the axial direction on the circumferential surface of the structural member, and linearly moving integrally with the device main body provided in the device main body And a coating device comprising a coating section that rotates and moves in the circumferential direction of the structure and applies paint to the circumferential surface of the structural member,
A coating apparatus, wherein a paint recovery part for receiving and recovering paint scattered from the coating part is detachably attached to the apparatus main body.   The paint recovery unit is detachably attached to the apparatus main body, a telescopic support frame attached to the support shaft, and attached to the support frame, and is scattered during a painting operation by the paint unit. The coating apparatus according to claim 1, further comprising a paint receiving portion that receives and collects the dropped paint.   The coating apparatus according to claim 2, wherein the paint collection unit is attached to the apparatus main body so that the paint receiving unit is positioned below the coating unit in the vertical direction.   The support frame is composed of a pair of frame members formed by connecting the middle portions of two long plate-like frame members through a connecting pin so as to be relatively rotatable, and having a long side and a short side. A predetermined set is arranged along each side, and a pair of adjacent frame members at each corner of the rectangle is connected so as to be relatively rotatable via a connecting member. 3. The structure according to claim 2, wherein each pair of frame members on the short side is configured to be able to expand and contract in the long side direction and the short side direction of the rectangle by relatively rotating about the connecting pin. 3. The coating apparatus according to 3.   The support shaft is constructed between the opposed long sides or the opposed short sides of the support frame, and the tip of the support shaft is a part of one long side frame material or one short side frame material. A slide member connected to a part of the frame material on the other long side or a part of the frame material on the other short side, and the slide member is slidably attached to the support shaft. The coating apparatus according to claim 4, wherein each short side and each long side are expanded and contracted by sliding along the support shaft.

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